socket.io Removing specific listener

Question

//To unsubscribe all listeners of an event
socket.off('event-name');

//to unsubscribe a certain listener
socket.off('event-name', listener);

Note that socket.off, socket.removeListener, socket.removeAllListeners, socket.removeEventListener are synonyms.

This is tested on socket.io v1.4.3

You need to pass in the listener function to removeListener.

function testFun(data){
    console.log('test complete',data);
}

socket.on('testComplete', testFun); 

function emitTest(){
    console.log('emitting test');
    socket.emit('test','first emit');
}

function removeListener(){
    socket.removeListener('testComplete', testFun);
}